Medium severity · published Jan 26, 2021
CVE-2021-22871
Revive Adserver before 5.1.0 permits any user with a manager account to store possibly malicious content in the URL website property, which is then displayed unsanitized in the…
4.8
CVSS
2.1%
EPSS
No
On KEV
Description
Revive Adserver before 5.1.0 permits any user with a manager account to store possibly malicious content in the URL website property, which is then displayed unsanitized in the affiliate-preview.php tag generation screen, leading to a persistent cross-site scripting (XSS) vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
Revive Adserver · Revive-adserver
before 5.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22871
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22871
Third Party Advisory
http://packetstormsecurity.com/files/161070/Revive-Adserver-5.0.5-Cross-Site-Scripting-Open-Redirect.html
Broken Link
http://seclists.org/fulldisclosure/2021/Jan/60
Patch
https://github.com/revive-adserver/revive-adserver/commit/62a2a0439
Patch
https://github.com/revive-adserver/revive-adserver/commit/89b88ce26
Exploit
https://hackerone.com/reports/819362
Vendor Advisory
https://www.revive-adserver.com/security/revive-sa-2021-001/
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